a new poll shows a tight race to the white house in a. according to a rocky mountain high likely voters obama has a 44% edge over mitt romney. only one has won arizona in the past 60 years. bill clinton in 1996. the romney campaign has a new ad out today featuring joe biden lafrg as his republican challenger congressman paul ryan talks about the struggling economy. the contrasting foot amg was from thursday's vice-presidential debate. a cnn/orc poll shows us. >>> a dangerous and daring effort to break the sky. today felix bottom guarder? is making an attempt to jump from the edge of space. brian todd is here with details. >> right now they're going through to process of inflating felix baumgartner's balloon. it could take as much as an hour. the launch of the balloon and capsule may not occur for at least another hour. from that point it will take two and half hours to three hours for him to ascend 120 feet above the surface of the earth. if it happened today, it may not happen until mid afternoon or early afternoon eastern time. so he's